Iron Supplementation in Children with Attention Deficit Hyperactivity Disorder: A Single Centre Study

To assess the effect of iron supplementation on symptoms in children with attention deficit hyperactivity disease (ADHD).

A prospective single arm intervention study was conducted on children aged 4-12 years, newly diagnosed with ADHD, attending the child development clinic in a tertiary centre in Northern India. A baseline hemogram and serum ferritin levels were assessed in all children. ADHD symptom severity was assessed with age-appropriate neuropsychometric questionnaires, and objective tests of attention at baseline and after six weeks of oral iron therapy.

Out of 32 participants, 23 were found to be ferritin sufficient (serum ferritin > 30 ng/mL) at enrolment. There was no difference in the median scores of neuropsychometric tests at the baseline of ferritin sufficient and ferritin deficient children. A statistically significant change in median scores of inattention and hyperactivity subscale on Conner's Rating Scale (P = 0.036) as well as significant improvement on tests of attention; Children's Color Trails Test (CCTT) (P = 0.006) were observed after six weeks of iron therapy in all children.

The study showed promising results of iron supplementation in the treatment of ADHD symptoms in children. Keywords: ADHD, Anemia, Inattention, Serum ferritin.